Corrosion-Resistant Custom HDPE Rubber Flange for Petroleum Piping

The core of our flange design lies in the material selection. We use high-grade HDPE (PE100) for the flange body, which offers excellent resistance to chemical corrosion, ensuring that the component will not degrade when exposed to petroleum products, acids, or alkaline substances. To guarantee a secure seal, we integrate high-performance rubber gaskets-such as EPDM, NBR, or Viton-that are chosen based on the specific operating temperature and chemical exposure of the application. These rubber seals can withstand temperatures ranging from -40°C to +250°C and pressures up to 150 bar, making them suitable for high-pressure petroleum pipelines.

We understand that petroleum piping systems often require non-standard dimensions or specific bolt patterns. Our in-house mold workshop and CNC machining capabilities allow us to manufacture custom flanges tailored to exact client specifications. Whether you need a standard raised face (RF) flange or a specialized slip-on design, we can adjust the size, hardness (40–90 Shore A), and color to match your project requirements. Every custom order is backed by our ISO-certified quality control process, ensuring that each flange meets strict dimensional tolerances and pressure testing standards.

Installation reliability is as important as material quality. Our HDPE flanges are designed for compatibility with both hot-melt and electric fusion connection methods, allowing for seamless integration into existing HDPE pipeline systems. The flange structure includes reinforcement ribs to prevent deformation under high pressure, and the sealing surface is precision-machined to ensure even gasket compression. We also provide detailed installation guidelines to help field teams achieve proper bolt torque and avoid common sealing failures.

From our factory floor to your pipeline site, we focus on practical solutions rather than marketing claims. Every flange we produce undergoes pressure testing and visual inspection before shipment. For petroleum industry clients, we offer small-batch prototyping to validate fit and performance before full-scale production. If you are dealing with corrosive media, high pressure, or non-standard connections, share your technical parameters with us. We will provide a straightforward assessment and a custom flange solution built to handle the realities of petroleum piping.